DE102015001085A1 - In einem magnetoresistiven effektsensor verwendete duale deckschicht - Google Patents
In einem magnetoresistiven effektsensor verwendete duale deckschicht Download PDFInfo
- Publication number
- DE102015001085A1 DE102015001085A1 DE102015001085.9A DE102015001085A DE102015001085A1 DE 102015001085 A1 DE102015001085 A1 DE 102015001085A1 DE 102015001085 A DE102015001085 A DE 102015001085A DE 102015001085 A1 DE102015001085 A1 DE 102015001085A1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- magnetic
- shield
- magnetic layer
- read head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3916—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide
- G11B5/3919—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path
- G11B5/3922—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure
- G11B5/3925—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure the two parts being thin films
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3909—Arrangements using a magnetic tunnel junction
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3912—Arrangements in which the active read-out elements are transducing in association with active magnetic shields, e.g. magnetically coupled shields
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
- G01R33/098—Magnetoresistive devices comprising tunnel junctions, e.g. tunnel magnetoresistance sensors
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3929—Disposition of magnetic thin films not used for directly coupling magnetic flux from the track to the MR film or for shielding
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3929—Disposition of magnetic thin films not used for directly coupling magnetic flux from the track to the MR film or for shielding
- G11B5/3932—Magnetic biasing films
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/398—Specially shaped layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B2005/3996—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects large or giant magnetoresistive effects [GMR], e.g. as generated in spin-valve [SV] devices
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Heads (AREA)
- Hall/Mr Elements (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/166,699 | 2014-01-28 | ||
US14/166,699 US9183858B2 (en) | 2014-01-28 | 2014-01-28 | Dual capping layer utilized in a magnetoresistive effect sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102015001085A1 true DE102015001085A1 (de) | 2015-07-30 |
Family
ID=52673916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102015001085.9A Withdrawn DE102015001085A1 (de) | 2014-01-28 | 2015-01-28 | In einem magnetoresistiven effektsensor verwendete duale deckschicht |
Country Status (9)
Country | Link |
---|---|
US (1) | US9183858B2 (ja) |
JP (1) | JP5944022B2 (ja) |
KR (1) | KR20150089973A (ja) |
CN (1) | CN104810026A (ja) |
DE (1) | DE102015001085A1 (ja) |
GB (2) | GB2531906A (ja) |
IE (1) | IE20150021A1 (ja) |
IN (1) | IN2015DE00237A (ja) |
SG (1) | SG10201500652TA (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150287426A1 (en) * | 2014-04-07 | 2015-10-08 | HGST Netherlands B.V. | Magnetic read head having spin hall effect layer |
US9633679B2 (en) * | 2014-05-06 | 2017-04-25 | Seagate Technology Llc | Sensor stack structure with RKKY coupling layer between free layer and capping layer |
JP6448282B2 (ja) * | 2014-10-01 | 2019-01-09 | 株式会社東芝 | 磁気ヘッド、磁気ヘッドアセンブリ、磁気記録再生装置、および磁気ヘッドの製造方法 |
US10008224B2 (en) | 2016-03-11 | 2018-06-26 | Western Digital Technologies, Inc. | Magnetic read head with floating trailing shield |
US9947347B1 (en) | 2016-12-20 | 2018-04-17 | Western Digital Technologies, Inc. | Magnetic sensor using inverse spin hall effect |
WO2018182697A1 (en) * | 2017-03-31 | 2018-10-04 | Intel Corporation | Magnetic tunnel junction (mtj) devices with a sidewall passivation layer and methods to for the same |
US10032365B1 (en) | 2017-10-16 | 2018-07-24 | Universal Electronics Inc. | Apparatus, system and method for using a universal controlling device for displaying a graphical user element in a display device |
US10564229B2 (en) * | 2017-10-16 | 2020-02-18 | Tdk Corporation | Tunnel magnetoresistive effect element, magnetic memory, and built-in memory |
US10872626B2 (en) | 2018-03-06 | 2020-12-22 | Western Digital Technologies, Inc. | MAMR stack shape optimization for magnetic recording |
US10719298B1 (en) * | 2019-02-25 | 2020-07-21 | Western Digital Technologies, Inc. | System for generating random noise with a magnetic device |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6456467B1 (en) * | 2000-03-31 | 2002-09-24 | Seagate Technology Llc | Laminated shields with antiparallel magnetizations |
US6700757B2 (en) | 2001-01-02 | 2004-03-02 | Hitachi Global Storage Technologies Netherlands B.V. | Enhanced free layer for a spin valve sensor |
US7196881B2 (en) * | 2004-03-08 | 2007-03-27 | Hitachi Global Storage Technologies Netherlands B.V. | Adaptive domain stabilization for magnetic recording read sensors |
US20060114620A1 (en) | 2004-11-30 | 2006-06-01 | Tdk Corporation | Granular type free layer and magnetic head |
US20090046395A1 (en) * | 2006-03-10 | 2009-02-19 | Canon Anelva Corporation | Magnetoresistive effect thin-film magnetic head and method for fabricating same |
US7672091B2 (en) * | 2006-03-15 | 2010-03-02 | Seagate Technology Llc | Reset device for biasing element in a magnetic sensor |
US7672093B2 (en) * | 2006-10-17 | 2010-03-02 | Magic Technologies, Inc. | Hafnium doped cap and free layer for MRAM device |
US7715155B2 (en) | 2007-04-11 | 2010-05-11 | Tdk Corporation | Thin-film magnetic head and manufacturing method thereof |
US9442171B2 (en) * | 2008-01-09 | 2016-09-13 | Seagate Technology Llc | Magnetic sensing device with reduced shield-to-shield spacing |
US8514524B2 (en) * | 2008-05-09 | 2013-08-20 | Headway Technologies, Inc. | Stabilized shields for magnetic recording heads |
US8184411B2 (en) * | 2009-10-26 | 2012-05-22 | Headway Technologies, Inc. | MTJ incorporating CoFe/Ni multilayer film with perpendicular magnetic anisotropy for MRAM application |
US8953285B2 (en) | 2010-05-05 | 2015-02-10 | Headway Technologies, Inc. | Side shielded magnetoresistive (MR) read head with perpendicular magnetic free layer |
US8089734B2 (en) | 2010-05-17 | 2012-01-03 | Tdk Corporation | Magnetoresistive element having a pair of side shields |
US8922956B2 (en) | 2010-06-04 | 2014-12-30 | Seagate Technology Llc | Tunneling magneto-resistive sensors with buffer layers |
US8514525B2 (en) | 2010-09-13 | 2013-08-20 | HGST Netherlands B.V. | Current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) sensor with reference layer integrated in magnetic shield |
US20120063034A1 (en) | 2010-09-13 | 2012-03-15 | Hitachi Global Storage Technologies Netherlands B.V. | Current-perpendicular-to-the-plane (cpp) magnetoresistive (mr) sensor with improved insulating structure |
US8437106B2 (en) * | 2010-10-08 | 2013-05-07 | Tdk Corporation | Thin film magnetic head including spin-valve film with free layer magnetically connected with shield |
US8553370B2 (en) | 2010-11-24 | 2013-10-08 | HGST Netherlands B.V. | TMR reader structure having shield layer |
US8553371B2 (en) | 2010-11-24 | 2013-10-08 | HGST Netherlands B.V. | TMR reader without DLC capping structure |
US20120327537A1 (en) * | 2011-06-23 | 2012-12-27 | Seagate Technology Llc | Shield Stabilization Configuration With Applied Bias |
US8462461B2 (en) * | 2011-07-05 | 2013-06-11 | HGST Netherlands B.V. | Spin-torque oscillator (STO) with magnetically damped free layer |
US8611053B2 (en) | 2012-03-08 | 2013-12-17 | HGST Netherlands B.V. | Current-perpendicular-to-the-plane (CPP) magnetoresistive sensor with multilayer reference layer including a Heusler alloy |
US8797692B1 (en) * | 2012-09-07 | 2014-08-05 | Western Digital (Fremont), Llc | Magnetic recording sensor with AFM exchange coupled shield stabilization |
US8531801B1 (en) * | 2012-12-20 | 2013-09-10 | Western Digital (Fremont), Llc | Method and system for providing a read transducer having a composite magnetic shield with smooth interfaces |
US9123886B2 (en) * | 2013-03-05 | 2015-09-01 | Headway Technologies, Inc. | High moment wrap-around shields for magnetic read head improvements |
US8780505B1 (en) * | 2013-03-12 | 2014-07-15 | Western Digital (Fremont), Llc | Method and system for providing a read transducer having an improved composite magnetic shield |
US8780506B1 (en) * | 2013-06-20 | 2014-07-15 | HGST Netherlands B.V. | Current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) sensor with side shields and an antiparallel structure top shield |
US9087525B2 (en) * | 2013-10-30 | 2015-07-21 | Seagate Technology Llc | Layered synthetic anti-ferromagnetic upper shield |
-
2014
- 2014-01-28 US US14/166,699 patent/US9183858B2/en active Active
-
2015
- 2015-01-26 GB GB1516399.1A patent/GB2531906A/en not_active Withdrawn
- 2015-01-26 GB GB1501239.6A patent/GB2523467A/en not_active Withdrawn
- 2015-01-27 IE IE20150021A patent/IE20150021A1/en not_active IP Right Cessation
- 2015-01-27 SG SG10201500652TA patent/SG10201500652TA/en unknown
- 2015-01-28 JP JP2015014108A patent/JP5944022B2/ja active Active
- 2015-01-28 IN IN237DE2015 patent/IN2015DE00237A/en unknown
- 2015-01-28 KR KR1020150013618A patent/KR20150089973A/ko active IP Right Grant
- 2015-01-28 DE DE102015001085.9A patent/DE102015001085A1/de not_active Withdrawn
- 2015-01-28 CN CN201510100220.6A patent/CN104810026A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
JP5944022B2 (ja) | 2016-07-05 |
IE20150021A1 (en) | 2015-07-29 |
US9183858B2 (en) | 2015-11-10 |
GB201501239D0 (en) | 2015-03-11 |
KR20150089973A (ko) | 2015-08-05 |
GB2523467A (en) | 2015-08-26 |
SG10201500652TA (en) | 2015-08-28 |
GB201516399D0 (en) | 2015-10-28 |
US20150213816A1 (en) | 2015-07-30 |
JP2015141732A (ja) | 2015-08-03 |
IN2015DE00237A (ja) | 2015-07-31 |
GB2531906A (en) | 2016-05-04 |
CN104810026A (zh) | 2015-07-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |